Some embodiments provide for a modular video projector system having a light engine module and an optical engine module. The light engine module can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from a video processing engine. Some embodiments provide for an optical engine module having a sub-pixel generator configured to display video or images at a resolution of at least four times greater than a resolution of modulating elements within the optical engine module. Systems and methods for reducing speckle are presented in conjunction with the modular video projector system.

An imaging apparatus includes an illumination section, an imaging section, and an image processor. The illumination section includes an illumination unit configured to selectively emit illumination light rays of light wavelength bands different from each other, and an illumination switch controller which generates an illumination unit control signal corresponding to each of sets of emission patterns so that combinations of the light wavelength bands of the illumination light rays emitted from the illumination unit are different from each other and the illumination switch controller controlling the illumination unit so that the illumination light rays are sequentially emitted from the illumination unit in the sets of emission patterns different from each other.

An imaging apparatus includes an illumination section, an imaging section, and an image processor. The illumination section includes an illumination unit configured to selectively emit illumination light rays of light wavelength bands different from each other, and an illumination switch controller which generates an illumination unit control signal corresponding to each of sets of emission patterns so that combinations of the light wavelength bands of the illumination light rays emitted from the illumination unit are different from each other and the illumination switch controller controlling the illumination unit so that the illumination light rays are sequentially emitted from the illumination unit in the sets of emission patterns different from each other.

According to the present invention, it is an object to provide an imaging apparatus and an imaging method in which there is no need for registration between images corresponding to a plurality of specific wavelengths, which is capable of acquiring images corresponding to a plurality of specific wavelengths based on light information at the same position of a subject so as to reduce the calculation load for acquiring the images corresponding to the plurality of specific wavelengths. The imaging apparatus (10) includes: an optical member (101) that refracts first light and second light having mutually different wavelengths of light with refractive indexes corresponding to the respective wavelengths so as to shift a position of a first image of the first light and a position of a second image of the second light; a light transmissive filter (103); and a directional sensor (17). The optical member shifts the position of the first image and the position of the second image on the directional sensor by one pitch of the pixels on the basis of a difference in refractive index due to a difference between the wavelength of the first light and the wavelength of the second light.

A light field imaging device and method are provided. The device can include a diffraction grating assembly receiving a wavefront from a scene and including one or more diffraction gratings, each having a grating period along a grating axis and diffracting the wavefront to generate a diffracted wavefront. The device can also include a pixel array disposed under the diffraction grating assembly and detecting the diffracted wavefront in a near-field diffraction regime to provide light field image data about the scene. The pixel array has a pixel pitch along the grating axis that is smaller than the grating period. The device can further include a color filter array disposed over the pixel array to spatio-chromatically sample the diffracted wavefront prior to detection by the pixel array. The device and method can be implemented in backside-illuminated sensor architectures. Diffraction grating assemblies for use in the device and method are also disclosed.

An illumination system including a first excitation light source, a wavelength conversion element, and a scattering element is provided. The first excitation light source emits a first excitation beam. The wavelength conversion element includes a wavelength conversion material. The wavelength conversion element has a first region and a second region. A concentration of the wavelength conversion material in the first region is greater than a concentration of the wavelength conversion material in the second region. The scattering element is disposed on a transmission path of the first excitation beam. A projection apparatus with the illumination system is also provided.

The present disclosure relates to a method and a device for correcting a color temperature of a flash lamp in the field of the computer technology. The method includes: obtaining a first color temperature value of a gray point region in a first image, in which the first image is obtained by capturing a scene when the flash lamp is closed; searching for an image region corresponding to the gray point region in a second image, in which the second image is obtained by capturing the scene when the flash lamp is open; and correcting the color temperature for the light compensation of the flash lamp according to a difference obtained by subtracting the first color temperature value from the second color temperature value.

An image projection apparatus includes a light source, an image generation unit configured to receive light from the light source and generate an image based on the received light, a projection optical system unit configured to project the image generated by the image generation unit, a heat dissipation unit configured to dissipate heat of the image generation unit, and a movable member configured such that a position of the movable member is movable relative to the projection optical system unit, wherein the image generation unit and the heat dissipation unit are mounted on the movable member.

An image projection apparatus includes a light source, an image generation unit configured to receive light from the light source and generate an image based on the received light, a projection optical system unit configured to project the image generated by the image generation unit, a heat dissipation unit configured to dissipate heat of the image generation unit, and a movable member configured such that a position of the movable member is movable relative to the projection optical system unit, wherein the image generation unit and the heat dissipation unit are mounted on the movable member.

An imaging unit images an object in a state where an infrared projector projects infrared light. The imaging unit generates an imaging signal. A determination unit analyzes the relationship between the amount of environmental visible light and the amount of infrared light. A controller controls the imaging device, according to the relationship between the amount of environmental visible light and the amount of infrared light, analyzed by the determination unit.